Package | Description |
---|---|
org.apache.lucene.codecs |
Codecs API: API for customization of the encoding and structure of the index.
|
org.apache.lucene.codecs.blockterms |
Pluggable term index / block terms dictionary implementations.
|
org.apache.lucene.codecs.blocktree |
BlockTree terms dictionary.
|
org.apache.lucene.codecs.blocktreeords |
Same postings format as Lucene50, except the terms dictionary also
supports ords, i.e.
|
org.apache.lucene.codecs.bloom |
Codec PostingsFormat for fast access to low-frequency terms
such as primary key fields.
|
org.apache.lucene.codecs.compressing |
StoredFieldsFormat that allows cross-document and cross-field compression of stored fields.
|
org.apache.lucene.codecs.idversion |
A primary-key postings format that associates a version (long) with each term and
can provide fail-fast lookups by ID and version.
|
org.apache.lucene.codecs.lucene50 |
Components from the Lucene 5.0 index format
See
org.apache.lucene.codecs.lucene50 for an overview
of the index format. |
org.apache.lucene.codecs.lucene60 |
Components from the Lucene 6.0 index format.
|
org.apache.lucene.codecs.memory |
Term dictionary, DocValues or Postings formats that are read
entirely into memory.
|
org.apache.lucene.codecs.simpletext |
Simpletext Codec: writes human readable postings.
|
org.apache.lucene.facet |
Faceted search.
|
org.apache.lucene.facet.sortedset |
Provides faceting capabilities over facets that were indexed
with
SortedSetDocValuesFacetField . |
org.apache.lucene.facet.taxonomy |
Taxonomy of Categories.
|
org.apache.lucene.facet.taxonomy.directory |
Taxonomy index implementation using on top of a Directory.
|
org.apache.lucene.facet.taxonomy.writercache |
Improves indexing time by caching a map of CategoryPath to their Ordinal.
|
org.apache.lucene.index |
Code to maintain and access indices.
|
org.apache.lucene.search |
Code to search indices.
|
org.apache.lucene.search.suggest |
Support for Autocomplete/Autosuggest
|
org.apache.lucene.search.suggest.analyzing |
Analyzer based autosuggest.
|
org.apache.lucene.search.suggest.document |
Support for document suggestion
|
org.apache.lucene.search.suggest.fst |
Finite-state based autosuggest.
|
org.apache.lucene.search.suggest.jaspell |
JaSpell-based autosuggest.
|
org.apache.lucene.search.suggest.tst |
Ternary Search Tree based autosuggest.
|
org.apache.lucene.store |
Binary i/o API, used for all index data.
|
org.apache.lucene.util |
Some utility classes.
|
org.apache.lucene.util.automaton |
Finite-state automaton for regular expressions.
|
org.apache.lucene.util.bkd |
Block KD-tree, implementing the generic spatial data structure described in
this paper.
|
org.apache.lucene.util.fst |
Finite state transducers
|
org.apache.lucene.util.packed |
Packed integer arrays and streams.
|
Modifier and Type | Class and Description |
---|---|
class |
DocValuesProducer
Abstract API that produces numeric, binary, sorted, sortedset,
and sortednumeric docvalues.
|
class |
FieldsProducer
Abstract API that produces terms, doc, freq, prox, offset and
payloads postings.
|
class |
NormsProducer
Abstract API that produces field normalization values
|
class |
PointsReader
Abstract API to visit point values.
|
class |
PostingsReaderBase
The core terms dictionaries (BlockTermsReader,
BlockTreeTermsReader) interact with a single instance
of this class to manage creation of
PostingsEnum and
PostingsEnum instances. |
class |
StoredFieldsReader
Codec API for reading stored fields.
|
class |
TermVectorsReader
Codec API for reading term vectors:
|
Modifier and Type | Class and Description |
---|---|
class |
BlockTermsReader
Handles a terms dict, but decouples all details of
doc/freqs/positions reading to an instance of
PostingsReaderBase . |
class |
FixedGapTermsIndexReader
TermsIndexReader for simple every Nth terms indexes.
|
class |
TermsIndexReaderBase
BlockTermsReader interacts with an instance of this class
to manage its terms index. |
class |
VariableGapTermsIndexReader
|
Modifier and Type | Method and Description |
---|---|
java.util.Collection<Accountable> |
VariableGapTermsIndexReader.getChildResources() |
java.util.Collection<Accountable> |
BlockTermsReader.getChildResources() |
java.util.Collection<Accountable> |
FixedGapTermsIndexReader.getChildResources() |
Modifier and Type | Class and Description |
---|---|
class |
BlockTreeTermsReader
A block-based terms index and dictionary that assigns
terms to variable length blocks according to how they
share prefixes.
|
class |
FieldReader
BlockTree's implementation of
Terms . |
Modifier and Type | Method and Description |
---|---|
java.util.Collection<Accountable> |
FieldReader.getChildResources() |
java.util.Collection<Accountable> |
BlockTreeTermsReader.getChildResources() |
Modifier and Type | Class and Description |
---|---|
class |
OrdsBlockTreeTermsReader
|
Modifier and Type | Method and Description |
---|---|
java.util.Collection<Accountable> |
OrdsBlockTreeTermsReader.getChildResources() |
Modifier and Type | Class and Description |
---|---|
class |
FuzzySet
A class used to represent a set of many, potentially large, values (e.g.
|
Modifier and Type | Class and Description |
---|---|
class |
CompressingStoredFieldsIndexReader
Random-access reader for
CompressingStoredFieldsIndexWriter . |
class |
CompressingStoredFieldsReader
|
class |
CompressingTermVectorsReader
|
Modifier and Type | Method and Description |
---|---|
java.util.Collection<Accountable> |
CompressingStoredFieldsIndexReader.getChildResources() |
java.util.Collection<Accountable> |
CompressingStoredFieldsReader.getChildResources() |
java.util.Collection<Accountable> |
CompressingTermVectorsReader.getChildResources() |
Modifier and Type | Class and Description |
---|---|
class |
VersionBlockTreeTermsReader
|
Modifier and Type | Method and Description |
---|---|
java.util.Collection<Accountable> |
VersionBlockTreeTermsReader.getChildResources() |
Modifier and Type | Class and Description |
---|---|
class |
Lucene50PostingsReader
Concrete class that reads docId(maybe frq,pos,offset,payloads) list
with postings format.
|
Modifier and Type | Class and Description |
---|---|
class |
Lucene60PointsReader
Reads point values previously written with
Lucene60PointsWriter |
Modifier and Type | Method and Description |
---|---|
java.util.Collection<Accountable> |
Lucene60PointsReader.getChildResources() |
Modifier and Type | Class and Description |
---|---|
class |
FSTOrdTermsReader
FST-based terms dictionary reader.
|
class |
FSTTermsReader
FST-based terms dictionary reader.
|
Modifier and Type | Method and Description |
---|---|
java.util.Collection<Accountable> |
FSTOrdTermsReader.getChildResources() |
java.util.Collection<Accountable> |
FSTTermsReader.getChildResources() |
Modifier and Type | Class and Description |
---|---|
static class |
SimpleTextNormsFormat.SimpleTextNormsProducer
Reads plain-text norms.
|
class |
SimpleTextStoredFieldsReader
reads plaintext stored fields
|
class |
SimpleTextTermVectorsReader
Reads plain-text term vectors.
|
Modifier and Type | Method and Description |
---|---|
java.util.Collection<Accountable> |
SimpleTextNormsFormat.SimpleTextNormsProducer.getChildResources() |
Modifier and Type | Class and Description |
---|---|
class |
MultiFacetQuery
A multi-terms
Query over a FacetField . |
Modifier and Type | Class and Description |
---|---|
class |
DefaultSortedSetDocValuesReaderState
Default implementation of
SortedSetDocValuesFacetCounts . |
class |
SortedSetDocValuesReaderState
Wraps a
IndexReader and resolves ords
using existing SortedSetDocValues APIs without a
separate taxonomy index. |
Modifier and Type | Method and Description |
---|---|
java.util.Collection<Accountable> |
DefaultSortedSetDocValuesReaderState.getChildResources()
Returns nested resources of this class.
|
Modifier and Type | Class and Description |
---|---|
class |
CachedOrdinalsReader
A per-segment cache of documents' facet ordinals.
|
static class |
CachedOrdinalsReader.CachedOrds
Holds the cached ordinals in two parallel
int[] arrays. |
Modifier and Type | Method and Description |
---|---|
java.util.Collection<Accountable> |
CachedOrdinalsReader.getChildResources() |
Modifier and Type | Class and Description |
---|---|
class |
DirectoryTaxonomyReader
A
TaxonomyReader which retrieves stored taxonomy information from a
Directory . |
Modifier and Type | Method and Description |
---|---|
java.util.Collection<Accountable> |
DirectoryTaxonomyReader.getChildResources() |
Modifier and Type | Class and Description |
---|---|
class |
UTF8TaxonomyWriterCache
A "cache" that never frees memory, and stores labels in a BytesRefHash (utf-8 encoding).
|
Modifier and Type | Class and Description |
---|---|
class |
CodecReader
LeafReader implemented by codec APIs.
|
class |
EmptyDocValuesProducer
Abstrast base class implementing a
DocValuesProducer that has no doc values. |
class |
FilterCodecReader
A
FilterCodecReader contains another CodecReader, which it
uses as its basic source of data, possibly transforming the data along the
way or providing additional functionality. |
class |
IndexWriter
An
IndexWriter creates and maintains an index. |
class |
OrdinalMap
Maps per-segment ordinals to/from global ordinal space, using a compact packed-ints representation.
|
class |
PrefixCodedTerms
Prefix codes term instances (prefixes are shared).
|
class |
SegmentReader
IndexReader implementation over a single segment.
|
Modifier and Type | Method and Description |
---|---|
java.util.Collection<Accountable> |
FilterCodecReader.getChildResources() |
java.util.Collection<Accountable> |
OrdinalMap.getChildResources() |
java.util.Collection<Accountable> |
CodecReader.getChildResources() |
Modifier and Type | Class and Description |
---|---|
class |
DocIdSet
A DocIdSet contains a set of doc ids.
|
class |
LRUQueryCache
A
QueryCache that evicts queries using a LRU (least-recently-used)
eviction policy in order to remain under a given maximum size and number of
bytes used. |
class |
TermInSetQuery
Specialization for a disjunction over many terms that behaves like a
ConstantScoreQuery over a BooleanQuery containing only
BooleanClause.Occur.SHOULD clauses. |
Modifier and Type | Method and Description |
---|---|
java.util.Collection<Accountable> |
LRUQueryCache.getChildResources() |
java.util.Collection<Accountable> |
TermInSetQuery.getChildResources() |
Modifier and Type | Class and Description |
---|---|
class |
Lookup
Simple Lookup interface for
CharSequence suggestions. |
Modifier and Type | Class and Description |
---|---|
class |
AnalyzingInfixSuggester
Analyzes the input text and then suggests matches based
on prefix matches to any tokens in the indexed text.
|
class |
AnalyzingSuggester
Suggester that first analyzes the surface form, adds the
analyzed form to a weighted FST, and then does the same
thing at lookup time.
|
class |
BlendedInfixSuggester
Extension of the AnalyzingInfixSuggester which transforms the weight
after search to take into account the position of the searched term into
the indexed text.
|
class |
FreeTextSuggester
Builds an ngram model from the text sent to
FreeTextSuggester.build(org.apache.lucene.search.suggest.InputIterator) and predicts based on the last grams-1 tokens in
the request sent to FreeTextSuggester.lookup(java.lang.CharSequence, boolean, int) . |
class |
FuzzySuggester
Implements a fuzzy
AnalyzingSuggester . |
Modifier and Type | Method and Description |
---|---|
java.util.Collection<Accountable> |
FreeTextSuggester.getChildResources() |
java.util.Collection<Accountable> |
AnalyzingInfixSuggester.getChildResources() |
java.util.Collection<Accountable> |
AnalyzingSuggester.getChildResources() |
Modifier and Type | Class and Description |
---|---|
class |
CompletionsTermsReader
Holder for suggester and field-level info
for a suggest field
|
class |
NRTSuggester
NRTSuggester executes Top N search on a weighted FST specified by a
CompletionScorer |
Modifier and Type | Method and Description |
---|---|
java.util.Collection<Accountable> |
CompletionsTermsReader.getChildResources() |
java.util.Collection<Accountable> |
NRTSuggester.getChildResources() |
Modifier and Type | Class and Description |
---|---|
class |
FSTCompletionLookup
An adapter from
Lookup API to FSTCompletion . |
class |
WFSTCompletionLookup
Suggester based on a weighted FST: it first traverses the prefix,
then walks the n shortest paths to retrieve top-ranked
suggestions.
|
Modifier and Type | Method and Description |
---|---|
java.util.Collection<Accountable> |
FSTCompletionLookup.getChildResources() |
java.util.Collection<Accountable> |
WFSTCompletionLookup.getChildResources() |
Modifier and Type | Class and Description |
---|---|
class |
JaspellLookup
Deprecated.
Migrate to one of the newer suggesters which are much more RAM efficient.
|
class |
JaspellTernarySearchTrie
Deprecated.
Migrate to one of the newer suggesters which are much more RAM efficient.
|
protected static class |
JaspellTernarySearchTrie.TSTNode
Deprecated.
An inner class of Ternary Search Trie that represents a node in the trie.
|
Modifier and Type | Class and Description |
---|---|
class |
TSTLookup
Suggest implementation based on a
Ternary Search Tree
|
Modifier and Type | Class and Description |
---|---|
class |
ByteBuffersDataInput
|
class |
ByteBuffersDataOutput
A
DataOutput storing data in a list of ByteBuffer s. |
class |
NRTCachingDirectory
Wraps a
RAMDirectory
around any provided delegate directory, to
be used during NRT search. |
class |
RAMDirectory
Deprecated.
This class uses inefficient synchronization and is discouraged
in favor of
MMapDirectory . It will be removed in future versions
of Lucene. |
class |
RAMFile
Deprecated.
This class uses inefficient synchronization and is discouraged
in favor of
MMapDirectory . It will be removed in future versions
of Lucene. |
class |
RAMOutputStream
Deprecated.
This class uses inefficient synchronization and is discouraged
in favor of
MMapDirectory . It will be removed in future versions
of Lucene. |
Modifier and Type | Method and Description |
---|---|
java.util.Collection<Accountable> |
NRTCachingDirectory.getChildResources() |
java.util.Collection<Accountable> |
RAMDirectory.getChildResources()
Deprecated.
|
java.util.Collection<Accountable> |
RAMOutputStream.getChildResources()
Deprecated.
|
Modifier and Type | Class and Description |
---|---|
class |
BitDocIdSet
|
class |
BitSet
Base implementation for a bit set.
|
class |
FixedBitSet
BitSet of fixed length (numBits), backed by accessible (
FixedBitSet.getBits() )
long[], accessed with an int index, implementing Bits and
DocIdSet . |
class |
FrequencyTrackingRingBuffer
A ring buffer that tracks the frequency of the integers that it contains.
|
class |
NotDocIdSet
|
class |
PagedBytes
Represents a logical byte[] as a series of pages.
|
static class |
PagedBytes.Reader
Provides methods to read BytesRefs from a frozen
PagedBytes.
|
class |
RoaringDocIdSet
DocIdSet implementation inspired from http://roaringbitmap.org/
The space is divided into blocks of 2^16 bits and each block is encoded
independently. |
class |
SparseFixedBitSet
A bit set that only stores longs that have at least one bit which is set.
|
Modifier and Type | Method and Description |
---|---|
static Accountable |
Accountables.namedAccountable(java.lang.String description,
Accountable in)
Augments an existing accountable with the provided description.
|
static Accountable |
Accountables.namedAccountable(java.lang.String description,
java.util.Collection<Accountable> children,
long bytes)
Returns an accountable with the provided description, children and bytes.
|
static Accountable |
Accountables.namedAccountable(java.lang.String description,
long bytes)
Returns an accountable with the provided description and bytes.
|
Modifier and Type | Method and Description |
---|---|
default java.util.Collection<Accountable> |
Accountable.getChildResources()
Returns nested resources of this class.
|
static java.util.Collection<Accountable> |
Accountables.namedAccountables(java.lang.String prefix,
java.util.Map<?,? extends Accountable> in)
Converts a map of resources to a collection.
|
Modifier and Type | Method and Description |
---|---|
static Accountable |
Accountables.namedAccountable(java.lang.String description,
Accountable in)
Augments an existing accountable with the provided description.
|
static long |
RamUsageEstimator.sizeOf(Accountable[] accountables)
Return the size of the provided array of
Accountable s by summing
up the shallow size of the array and the
memory usage reported by each
Accountable . |
static java.lang.String |
Accountables.toString(Accountable a)
Returns a String description of an Accountable and any nested resources.
|
Modifier and Type | Method and Description |
---|---|
static Accountable |
Accountables.namedAccountable(java.lang.String description,
java.util.Collection<Accountable> children,
long bytes)
Returns an accountable with the provided description, children and bytes.
|
static java.util.Collection<Accountable> |
Accountables.namedAccountables(java.lang.String prefix,
java.util.Map<?,? extends Accountable> in)
Converts a map of resources to a collection.
|
Modifier and Type | Class and Description |
---|---|
class |
Automaton
Represents an automaton and all its states and transitions.
|
Modifier and Type | Class and Description |
---|---|
class |
BKDReader
Handles intersection of an multi-dimensional shape in byte[] space with a block KD-tree previously written with
BKDWriter . |
Modifier and Type | Class and Description |
---|---|
class |
FST<T>
Represents an finite state machine (FST), using a
compact byte[] format.
|
Modifier and Type | Class and Description |
---|---|
class |
AbstractPagedMutable<T extends AbstractPagedMutable<T>>
Base implementation for
PagedMutable and PagedGrowableWriter . |
class |
BlockPackedReader
Provides random access to a stream written with
BlockPackedWriter . |
static class |
DirectMonotonicReader.Meta
In-memory metadata that needs to be kept around for
DirectMonotonicReader to read data from disk. |
class |
GrowableWriter
Implements
PackedInts.Mutable , but grows the
bit count of the underlying packed ints on-demand. |
class |
MonotonicBlockPackedReader
Provides random access to a stream written with
MonotonicBlockPackedWriter . |
static class |
PackedInts.Mutable
A packed integer array that can be modified.
|
static class |
PackedInts.NullReader
A
PackedInts.Reader which has all its values equal to 0 (bitsPerValue = 0). |
static class |
PackedInts.Reader
A read-only random access array of positive integers.
|
class |
PackedLongValues
Utility class to compress integers into a
LongValues instance. |
static class |
PackedLongValues.Builder
A Builder for a
PackedLongValues instance. |
class |
PagedGrowableWriter
|
class |
PagedMutable
A
PagedMutable . |
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